什麼是element-ui

element-ui是由餓了麼前端團隊推出的一套為開發者、設計師和產品經理準備的基於. 2.0的桌面元件庫，而手機端有對應框架是 Mint UI 。整個ui風格簡約，很實用，同時也極大的提高了開發者的效率，是一個非常受歡迎的元件庫。

頁面大概如下：

元件使用的是layui的layer.open彈框。

左邊是表單資訊，右邊是繪圖區域。

原檔案mapForm.vue

<template>
    <div class="mapForm">
        <div class="left">
            <el-form ref="form" :model="form" :rules="rules" label-width="160px">
                <el-form-item label="地圖名稱" prop="mapName">
                    <el-input v-model="form.mapName" size="mini" clearable class="formInputClass"></el-input>
                </el-form-item>
                <el-form-item label="地圖描述" prop="remarks">
                    <el-input type="textarea" v-model="form.remarks" size="mini" clearable class="formInputClass"></el-input>
                </el-form-item>
                <el-form-item label="點位資訊" prop="" v-if="mapList.length > 0">
                    <div class="mapContent">
                        <div v-for="(map,key) in mapList" :key="key">
                            <div class="pointAbscissaOrdinate"><span>點位座標{{key+1}}：{{map.abscissa}}-{{map.ordinate}}</span></div>
                            <el-select v-model="mapList[key]['point']" placeholder="請選擇" class="selectClass" @change="changePoint">
                                <el-option v-for="(item,key) in pointList" :key="key" :label="item.name" :value="item.point">
                                </el-option>
                            </el-select>
                        </div>
                    </div>
                </el-form-item>
                <div class="btn">
                    <el-button @click="checkParams" type="primary">提交</el-button>
                </div>
            </el-form>
        </div>
        <div class="right" id="">
            <div class="imgDiv" id="imgDiv" v-loading="loadStage">
                <img :src="fileSrc" width="1100" height="720" id="imgPainter" />
                <div class="marker" v-for="(item,key) in mapList" :key="key" :style="{top: item.ordinate+'px','left': item.abscissa+'px'}" @contextmenu.prevent="clearMarker(key)">
                    {{key+1}}
                    <div class="ponint">{{item.point}}</div>
                </div>
            </div>
            <div class="uploadBtn">
                <el-upload class="upload-demo" ref="upload" action="" :on-change="handleChange" :show-file-list="false" :on-remove="handleRemove" :auto-upload="false" style="display:inline-block;">
                    <el-button slot="trigger" size="mini" type="primary">選取檔案</el-button>
                </el-upload>
                <el-button @click="clearPic" type="danger">清除所有點位</el-button>
            </div>
            <div class="info"><i class="el-icon-info"></i>顯示大小為1100px*720px</div>
            <div class="info"><i class="el-icon-info"></i>圖片框內滑鼠左鍵標點</div>
            <div class="info"><i class="el-icon-info"></i>圖片框內滑鼠右鍵已經標註的點刪除該點</div>
        </div>
    </div>
</template>
<script>
export default {
    name: 'mapFormComponent',data() {
        return {
            form: {
                mapName: "",},rules: {
                mapName: [
                    { required: true,message: "請輸入地圖名稱",trigger: "blur" },],fileList: [],fileSrc: '',pointList: [
                { name: "排放口1",point: "@FQ01" },{ name: "排放口2",point: "@FQ02" },mapList: [],//斑馬線的陣列
            canBiaoZhu: true,//是否可以進行標註
            pointColor:
 
 'red',//點的顏色
            pointSize: 20,//點的大小
            pointSelectList: {},notifyId: {},loadStage: false,};
    },created() { },mounted() {
        // 繪點區域事件繫結
        let _this = this;
        if (document.getElementById('imgPainter')) {
            document.getElementById('imgPainter').onmousedown = (e) => {
                e = e || window.event
                if (e.button !== 2) {       //判斷是否右擊
                    if (this.canBiaoZhu && this.fileSrc != '') {    //判斷是否可以進行標註  需上傳圖片
                        var x = e.offsetX || e.layerX
                        var y = e.offsetY || e.layerY
                        this.mapList.push({
                            id: this.mapList.length + 1,http://www.cppcns.com
 
name: '',abscissa: x,ordinate: y,})
                        // 設定變數
                        // this.pointSelectList.$set(0);
                        let key = `point`;
                        _this.$set(this.mapList[this.mapList.length - 1],key,"")
                    } else {
                        //提示上傳圖片
                        // 只顯示一次
                        if (_this.notifyId.id)
                            _this.notifyId.close();
                        this.notifyId = _this.$notify.error({
                            title: '提示資訊',message: '請先上傳圖片後再標點',showClose: true,});
                    }
                } else {
                    return false
                }
            }
        }
        // 右鍵阻止
        var oDiv1 = document.getElementById('imgDiv');
        oDiv1.oncontextmenu = function (ev) {
            var e = e || window.event;
         客棧
 
   //阻止冒泡
            e.cancelBubble = true;
            //阻止觸發預設事件
            e.returnValue = false;
        }
    },methods: {
        changePoint() {
            /**point change */
            this.$forceUpdate();
        },clearMarker(index) {
            /**清除marker */
            this.mapList.splice(index,1);
        },handleChange(file,fileList) {
            this.loadStage = true;
            let fileName = file.name;
            let regex = /(.jpg|.jpeg|.gif|.png|.bmp)$/;
            if (regex.test(fileName.toLowerCase())) {
                this.fileSrc = URL.createObjectURL(file.raw)  // 獲取URL
                console.log(this.fileSrc);
            } else {
                this.$message.error('請選擇圖片檔案');
            }
            this.loadStage = false;
        },clearPic() {
            /**清除圖片 */
            this.mapList = [];
        },checkParwww.cppcns.comams() {
            /***
             * 驗證提交資訊
             */
            this.$refs["form"].validate((valid) => {
                if (valid) {
                    let params = this.form;
                    this.submit(params);
                }
            });
        },async submit(params) {
            /**提交 */
            let resp = await this.$api.companyApiList
                .addEditCompany(params);
            if (resp.data.code != "error") {
                // 判斷是否新增修改
                this.$notify.success({
                    title: "提示",message: resp.data.msg,});
                let type = params.id && params.id != '' ? 'edit' : 'add';
                this.$emit("update",type);
                // 清空表單資料
                this.$refs.form.resetFields();
            }
        },};
</script>
<style scoped lang="less">
/**
  表單樣式
 */
.mapForm {
    display: flex;
    padding: 10px;
    border: 1px solid pink;
    .left {
        flex: 2;
        border-right: 1px dashed pink;
        margin-right: 4px;
        .mapContent {
            height: 700px;
            overflow-y: auto;
            .selectClass {
                margin: 0px 5px;
            }
            .pointAbscissaOrdinate {
                display: inline-block;
                width: 140px;
            }
        }
    }
    .right {
        flex: 8;
        // border: 1px solid pink;
        max-width: 1100px;
        .imgDiv {
            position: relative;
            height: 720px;
            border: 2px solid cornflowerblue;
            .marker {
                position: absolute;
                border-radius: 50%;
                z-index: 999;
                width: 20px;
                height: 20px;
                background-color: red;
                text-align: center;
                line-height: 20px;
                color: yellow;
                .ponint {
                    display: block;
                    position: absolute;
                    left: 20px;
                    top: 0px;
                    font-size: 12px;
                    color: blue;
                }
            }
            .marker:hover .ponint {
                display: block;
            }
        }
        .info {
            font-size: 12px;
        }
        .uploadBtn {
            margin: 10px 0px;
        }
    }
    .btn {
        padding-left: 160px;
    }
}
.formInputClass {
    width: 200px;
}
</style>

標點的效果如下：

到此這篇關程式設計客棧於element-ui 上傳圖片後標註座標點的文章就介紹到這了,更多相關element-ui 上傳圖片內容請搜尋我們以前的文章或繼續瀏覽下面的相關文章希望大家以後多多支援我們！